/*  -- translated by f2c (version 19940927).

   You must link the resulting object file with the libraries:

	-lf2c -lm   (in that order)

*/

#include "f2c.h"

integer izamax_(integer *n, doublecomplex *zx, integer *incx)

{

    /* System generated locals */

    integer ret_val, i__1;

    /* Local variables */

    static doublereal smax;

    static integer i;

    extern doublereal dcabs1_(doublecomplex *);

    static integer ix;

/*     finds the index of element having max. absolute value.   

       jack dongarra, 1/15/85.   

       modified 3/93 to return if incx .le. 0.   

       modified 12/3/93, array(1) declarations changed to array(*)   

   Parameter adjustments   

       Function Body */

#define ZX(I) zx[(I)-1]

    ret_val = 0;

    if (*n < 1 || *incx <= 0) {

	return ret_val;

    }

    ret_val = 1;

    if (*n == 1) {

	return ret_val;

    }

    if (*incx == 1) {

	goto L20;

    }

/*        code for increment not equal to 1 */

    ix = 1;

    smax = dcabs1_(&ZX(1));

    ix += *incx;

    i__1 = *n;

    for (i = 2; i <= *n; ++i) {

	if (dcabs1_(&ZX(ix)) <= smax) {

	    goto L5;

	}

	ret_val = i;

	smax = dcabs1_(&ZX(ix));

L5:

	ix += *incx;

/* L10: */

    }

    return ret_val;

/*        code for increment equal to 1 */

L20:

    smax = dcabs1_(&ZX(1));

    i__1 = *n;

    for (i = 2; i <= *n; ++i) {

	if (dcabs1_(&ZX(i)) <= smax) {

	    goto L30;

	}

	ret_val = i;

	smax = dcabs1_(&ZX(i));

L30:

	;

    }

    return ret_val;

} /* izamax_ */